Tire-pump



M. J. CHAIKIN.

TIRE PUMP.

APPLICATION F|LEn1uNE5,1920.

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TIRE PUMP.

APPLICAUON FILED JUNEs. 1920.

1,388,326. Patented Aug. 23,1921.

2 SHEETS-SHEET 2.

anim/mg UNITED STATES PATENT OFFICE.l

MORRIS J. CIIAIKIN, or DETROIT, MroHIGAN.

TIRE-PUMP.

Specification of Letters Patent. Patentd Aug 23, 1921.

Application filed June 5, 1,920. Serial No. 386,861.

This invention relates to tireppumps, and

it is the object of the invention to provide a tire pump manually actuable by turning of the crank, andv to provide for adjustment of the actuating mechanism from its normal position of use to a stored position, securing increased compactness and permitting disposal of the pump within the tool box of a motor vehicle.

vIn attaining this object the invention contemplates the arrangement of a pair of standards, one at each side of the cylinder, which standards engage the heads of the cylinder andare employed to clamp saidY heads upon the body kof the cylinder, the standards being extendedabove the cylinder and functioning additionally to fprovide a mounting upon which a crank and gear drive mechanism for the pump isv adjustable from an elevated position of use to a stored position'comparatively close to the cylinder.

A preferred embodiment of the invention is hereinafter described and is illustrated in the accompanying drawings, wherein;

Figure 1 is a frontviewgof the improved pump, showing the actuating mechanism in position of use.`

y Fig.v 2 is a similar view with said mecha- ,Y nisni in stored position.

Fig. 3 is a sectional `elevation of the invention, taken on line 3-3 of Fig. 1;

Fig. 4 is a cross-section on line 4 4 of Fig. 1, showing the engagementof the crosshead of the pump withY the standards thereof.

Fig. 5 is a cross-section on lineof Fig. 1, showing the adjustable' head which carries niost of the actuating mechanism.

Fig. 6 is a vertical sectional view, showing the mounting of said adjustable head upon the upper portions of said standard, and disclosing the gearing carried by said head.

1n these views the reference character l designates the body of the pump cylinder, and 2 and 3 the upper and lower heads of said cylinder. Cylindrical rods 4, one of which is arranged at each side of the cylinther extended abovethe cylinder to provide standards for carrying an actuating mechanism for the pump. To adapt the rods 4 to clamp the heads 2 and 3 upon the cylinder, said rods are formed with heads 6, forming abutments lfor the upper cylinder head 2, the

lower cylinder head being engaged by nuts 7 threaded upon the corresponding ends of said rods.' Thus, by tightening up the nuts 7 the two cylinder heads are clamped simultaneously upon the body 1, as firmly as may b e necessary. S and 9 designate respectively thepiston and piston rod of the pump, and 10 an airV outlet nipple engaging the lower cylinder head. Upon its upper end said piston rod rigidly carries a cross-head 11, the ends of which are bifurcated to forni mountings for a pair of grooved rollers 12 which respectively engage the rods 4. A pitman 13 is connected at yone end to the cross-head 11 and at its other to a crank 14 fast upon a stud shaft 15. Said shaft is adapted to be driven through a pair of spurgears 16 from an overlying stub shaft 17 upon which thc hand crank 18 is mounted fast. The shafts 15 and 17 are j ournaled in a head formed by a pair Vof spaced plates 19, vertically grooved at their ends, as indicated at 20, to engage the rods 4, and clampedfin opposed relation upon saidrods by a pair of .wing-headed' The central lportions of said other' of its two positions, respectively illustrated in Figs. 1 and 2. When in its raised position said head abuts the heads 25, the latter thus determining the proper position of use for the actuating mechanism. Grasping the stationary handle 24 with one hand, the operator turns theA crank 18 with the other, thus transmitting rotation through the gears 16 to the crank arm 14, and effecting reciprocatioii of the piston 8 through the pitman 13 and piston rod 9. The crosshead 11, through its engagement with the rods 4, safeguards the piston rod against bending stresses and friction between the cross-head and rods is minimized by provision of the rollers 12. When not in use the head 19, after loosening of the clamping screws 21, may be lowered as shown in Fig. 2, the pitman 13 and crank arm 14 assuming a vertical position and overlapping relation, and the arm 23 assuming a position between the upper portions of the rods et, so that the height over all is no greater than that of said rods. Thus, the pump acquires, in the stored position of its actuating mechanism, a compactness such as will readily permit it to be carried in an ordinary motor vehicle tool box.

Vhat I claim is:

1. A tire pump comprising a cylinder, a standard carried by and projecting upwardly from said cylinder, a piston within the cylinder, a. piston rod secured to lsaidl piston, a pitman engaging said piston rod, a crank-arm engaging said pitman,'actuating means for the crank-arm, and a mounting for said actuatingmeans and crank-arm carried by said standard and adjustable from a position of use adjacent'the topthereof to a lower stored position.

2. A tire pump comprising a cylinder, a standard carried by and-projecting upwardly from said cylinder, a piston within the cylinder,'a piston rod secured to said piston, a pitman engaging said piston rod, a crank-arm engaging said pitman, actuating meansfor the crank-arm, and a mounting for said actuating means and crankfarm carried by :said standard and Vadjustable from a position .of use 'adjacent' the top thereof to a lower 'stored position, said pitman and crank-arm assuming a vertical position and an overlapping relationv in said stored position.

3. A tire pump comprising acylinder, a standard carried by and projecting upwardly from said cylinder, a piston within the cylinder, a piston rod secured to said piston, a'pitman engaging said -piston rod, a crank-arm engaging said pitman, actuating means for the crank-arm,v a mounting for said actuating means and crank-arm carried lby said standard and adjustable from a position of use adjacent the top thereof to a lower stored position, lan arm extending upwardly from said mounting, and a handle secured to said arm.

4. A tire pump comprising a cylinder, a piston within said cylinder, a pair of spaced standards carried by and projecting upwardly vfrom the cylinder, a cross-head engaging said standards, a piston rod attached to said piston and carrying saidcross-head, a pitman engaging said cross-head, a crankarm engaging said pitman, actuating vmeans for said crank-arm, and a mounting for said actuating means and lcrank-arm clamped upon said standards and adjustable from a position of use adjacent the tops of the Astandards to a lower stored position.

5. A tire pump comprising a cylinder, a piston within said cylinder,l a pair of spaced standards carried' by and projecting up-` wardly from the cylinder, a cross-head engaging said standards, a piston rod attached to said piston and carrying said cross-head, a pitman engaging said crosshead,'a crankarm engaging said pitman, anl actuating crank, a gearing for rotating said crank-arm from said crank, and a 'pair of plates o'ppo` sitely clampedl uponsaid standards, and spaced to provide a housing for said gears, said plates forming a mounting for the crank, crank-arm, and gears, and being ad'- justable from a position of use adjacent the tops of said standards to a lowered stored position. g

6. A tire pump comprisin la cylinder including upper and lower cy inder heads, a pair of standards arranged one at each side of the cylinder and projecting thereabove, abutnients upon said standards engaging the upper lcylinder' head, 'nuts lengaging the lower vends of the standards and bearing upon the lower Ycylinder'-head,a piston within said cylinder, and actuating mechanism for said piston adjustable fromi'a position of use adjacent the tops of the standards to a lower stored position.

In testimony whereof I sign this specification. l f

f Monius J. cHArKiN. 

